projects.mako.cc - editimage_extension/blob - EditImage_body.php

   1 <?php
   2 /* Copyright (c) 2008 Benjamin Mako Hill <mako@atdot.cc>
   3    This file is part of the EditImage Mediawiki Extension.
   4
   5    EditImage is free software: you can redistribute it and/or modify it
   6    under the terms of the GNU General Public License as published by the
   7    Free Software Foundation, either version 3 of the License, or (at
   8    your option) any later version.
   9
  10    Foobar is distributed in the hope that it will be useful, but WITHOUT
  11    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13    for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with Foobar.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 function efRunEditImage( $par ) {
  19     EditImage::run( $par );
  20 }
  21
  22 function resizeImage ( $srcpath, $x1, $y1, $x2, $y2) {
  23     global $wgUseImageMagick, $wgImageMagickConvertCommand;
  24     global $wgCustomConvertCommand;
  25     global $wgTmpDirectory;
  26
  27     # generate width and height
  28     $w = abs($x2 - $x1);
  29     $h = abs($y2 - $y1);
  30
  31     # create temporary destination file location
  32     $dstpath = tempnam($wgTmpDirectory, "EditImage");
  33
  34     # specify white background color, will be used for transparent images
  35     # in internet explorer/windows instead of default black.
  36     $cmd  =  wfescapeshellarg($wgImageMagickConvertCommand) .
  37         " -background white " .
  38         wfescapeshellarg($srcpath) .
  39         // coalesce is needed to scale animated gifs properly (bug 1017).
  40         ' -coalesce ' .
  41         " -crop {$w}x{$h}+$x1+$y1! " .
  42         wfescapeshellarg($dstpath) . " 2>&1";
  43     wfDebug( __METHOD__.": running ImageMagick: $cmd\n");
  44     wfProfileIn( 'convert' );
  45     $err = wfShellExec( $cmd, $retval );
  46     wfProfileOut( 'convert' );
  47     return($dstpath);
  48 }
  49
  50 function uploadNewFile ($old_file, $new_filename) {
  51     global $wgRequest;
  52     $form = new UploadForm($wgRequest);
  53
  54     $form->mTempPath       = $new_filename;
  55     $form->mSrcName        = $old_file->getName();
  56     $form->mFileSize = filesize($new_filename);
  57     $form->mSessionKey     = false;
  58     $form->mStashed        = false;
  59     $form->mUploadClicked  = true;
  60
  61     $form->execute();
  62 }
  63
  64 class EditImage extends SpecialPage {
  65     function EditImage() {
  66         SpecialPage::SpecialPage("EditImage", '', true, 'efRunEditImage');
  67         wfLoadExtensionMessages('EditImage');
  68     }
  69
  70     function run( $par ) {
  71         global $wgRequest, $wgOut;
  72
  73         global $wgContLang;
  74         global $wgUser;
  75         # globals for javascript
  76         global $wgJsMimeType, $wgScriptPath;
  77
  78         # try to find the image that the user entered
  79         $image = $wgRequest->getText('image');
  80         $title = Title::newFromText( $image, NS_IMAGE );
  81         $file = wfFindFile( $title );
  82
  83         if ( ! $title instanceof Title || $title->getNamespace() != NS_IMAGE ) {
  84             $wgOut->addWikiText("Sorry, can't find that image!");
  85         } else {
  86             # see if we're passed editing information
  87             if ($wgRequest->wasPosted()) {
  88                 $x1 = $wgRequest->getInt(x1);
  89                 $x2 = $wgRequest->getInt(x2);
  90                 $y1 = $wgRequest->getInt(y1);
  91                 $y2 = $wgRequest->getInt(y2);
  92
  93                 $resized_fn = resizeImage($file->getFullPath(), $x1, $y1, $x2, $y2);
  94                 uploadNewFile($file, $resized_fn);
  95
  96                 # delete the file if it still exists
  97                 if (file_exists($resized_fn)) { unlink($resized_fn); }
  98
  99             } else {
 100
 101                 if ( $file && $file->exists() ) {
 102                     # add the javascript
 103                     $wgOut->addScript( "<script type=\"{$wgJsMimeType}\" src=\"$wgScriptPath/extensions/EditImage/lib/prototype.js\"></script>\n");
 104                     $wgOut->addScript( "<script type=\"{$wgJsMimeType}\" src=\"$wgScriptPath/extensions/EditImage/lib/scriptaculous.js\"></script>\n");
 105                     $wgOut->addScript( "<script type=\"{$wgJsMimeType}\" src=\"$wgScriptPath/extensions/EditImage/cropper.js\"></script>\n");
 106                     $wgOut->addScript( "<script type=\"{$wgJsMimeType}\" src=\"$wgScriptPath/extensions/EditImage/EditImage.js\"></script>\n");
 107
 108                     $instructions = wfMsg('editimage-instructions');
 109                     $crop_text = wfMsg('cropimage');
 110                     $wgOut->addHTML("<p>{$instructions}</p>\n");
 111
 112                     # add image
 113                     $wgOut->addHTML("<div><img src=\"{$file->getUrl()}\" alt=\"source image\" id=\"sourceImage\" /></div>\n");
 114
 115                     # add bottom of the template
 116                     $encComment = htmlspecialchars($wgRequest->getText('wpUploadDescription'));
 117                     $align1 = $wgContLang->isRTL() ? 'left' : 'right';
 118                     $align2 = $wgContLang->isRTL() ? 'right' : 'left';
 119                     $cols = intval($wgUser->getOption('cols'));
 120                     if( $wgUser->getOption( 'editwidth' ) ) {
 121                         $width = " style=\"width:100%\"";
 122                     } else {
 123                         $width = '';
 124                     }
 125                     $summary = wfMsgExt( 'fileuploadsummary', 'parseinline' );
 126
 127                     $wgOut->addHTML("<form action=\"\" method=\"POST\">
 128                                      <input type=\"hidden\" name=\"image\" value=\"{$image}\" />
 129                                      <input type=\"hidden\" name=\"x1\" id=\"x1\" />
 130                                      <input type=\"hidden\" name=\"y1\" id=\"y1\" />
 131                                      <input type=\"hidden\" name=\"x2\" id=\"x2\" />
 132                                      <input type=\"hidden\" name=\"y2\" id=\"y2\" />
 133                                      <input type=\"hidden\" name=\"width\" id=\"width\" />
 134                                      <input type=\"hidden\" name=\"height\" id=\"height\" />
 135                                      <table border='0'><tr>
 136                                        <td align='$align1'><label for='wpUploadDescription'>{$summary}</label></td>
 137                                        <td align='$align2'>
 138                                          <textarea tabindex='3' name='wpUploadDescription' id='wpUploadDescription' rows='6' cols='{$cols}'{$width}>$encComment</textarea>
 139                                        </td>
 140                                      </tr><table>
 141
 142                                      <p><input type=\"submit\" value=\"{$crop_text}\" /></p>
 143                                      </form>");
 144
 145                 } else {
 146                     $wgOut->setStatusCode( 404 );
 147                 }
 148             }
 149         }
 150     }
 151 }
 152
 153 ?>